On Wed, Sep 02, 2020 at 05:48:00PM +0200, Geert Uytterhoeven wrote: > On Wed, Sep 2, 2020 at 5:41 PM Geert Uytterhoeven > <geert+renesas@xxxxxxxxx> wrote: > > Pass the following properties to the crash dump kernel, to provide a > > modern DT interface between kexec and the crash dump kernel: > > > > - linux,elfcorehdr: ELF core header segment, similar to the > > "elfcorehdr=" kernel parameter. > > - linux,usable-memory-range: Usable memory reserved for the crash dump > > kernel. > > This makes the memory reservation explicit, so Linux no longer needs > > to mask the program counter, and rely on the "mem=" kernel parameter > > to obtain the start and size of usable memory. > > > > For backwards compatibility, the "elfcorehdr=" and "mem=" kernel > > parameters are still appended to the kernel command line. > > > > Loosely based on the ARM64 version by Akashi Takahiro. > > > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > > The counterpart patch for linux is "[PATCH] ARM: Parse kdump DT > properties" > (https://lore.kernel.org/r/20200902154538.6807-1-geert+renesas@xxxxxxxxx) Thanks Geert, I think it would be best to hold-off on the user-space patch until the kernel patch is accepted.
